secret.txt

古典密码学的经典例子。通过该程序可以实现古典密码学的加密过程

Mr jegx, Jsvh Tvijigx aew e vszmrk viwievgliv jsv xlex alsppc viqevoefpi fsso Xli Lmxgl Lmoiv’w Kymhi xs xli Kepebc..
Lyqer fimrkw evi kviex ehetxsvw, erh fc pyrglxmqi pmji mr xli irzmvsrw sj Evxlyv’w lsywi leh wixxpih mrxs e wxiehc vsyxmri. Mx aew Evxlyv’w eggitxih vspi xs pmi wuyipglmrk mr xli qyh qeomrk sggewmsrep hiqerhw xs wii lmw peaciv, lmw qsxliv sv e kssh fsso; mx aew Qv. Tvswwiv’w eggitxih vspi xs xegopi Evxlyv amxl xli sggewmsrep ria tpsc wygl ew xli Jsv xli Tyfpmg Kssh xepo, xli Qevgl sj Tvskviww xepo, xli Xlic Orsgoih Qc Lsywi Hsar Srgi Csy Orsa, Riziv Pssoih Fego xepo erh zevmsyw sxliv genspivmiw erh xlviexw; erh mx aew xli fypphsdiv hvmzivw’ eggitxih vspi xs wmx evsyrh hvmromrk gsjjii erh ibtivmqirxmrk amxl yrmsr vikypexmsrw xs wii lsa xlic gsyph xyvr xli wmxyexmsr xs xlimv jmrergmep ehzerxeki.
Xli Ievxl qszih wpsapc mr mxw hmyvrep gsyvwi.
Xli wyr aew fikmrrmrk xs hvc syx xli qyh Evxlyv pec mr.
E wlehsa qszih egvsww lmq ekemr.
“Lipps Evxlyv,” wemh xli wlehsa.
Evxlyv pssoih yt erh wuymrxmrk mrxs xli wyr aew wxevxpih xs wii Jsvh Tvijigx wxerhmrk efszi lmq.
“Jsvh! Lipps, lsa evi csy?”
“Jmri,” wemh Jsvh, “psso, evi csy fywc?”
“Eq M fywc?” ibgpemqih Evxlyv. “Aipp, M’zi nywx ksx epp xliwi fypphsdivw erh xlmrkw xs pmi mr jvsrx sj figeywi xlic’pp orsgo qc lsywi hsar mj M hsr’x, fyx sxliv xler xlex… aipp, rs rsx iwtigmeppc, alc?”
Xlic hsr’x lezi wevgewq sr Fixipkiywi, erh Jsvh Tvijigx sjxir jempih xs rsxmgi mx yrpiww li aew gsrgirxvexmrk. Li wemh, “Kssh, mw xlivi ercalivi ai ger xepo?”
“Alex?” wemh Evxlyv Hirx.
Jsv e jia wigsrhw Jsvh wiiqih xs mkrsvi lmq, erh wxevih jmbihpc mrxs xli woc pmoi e veffmx xvcmrk xs kix vyr sziv fc e gev. Xlir wyhhirpc li wuyexxih hsar fiwmhi Evxlyv.
“Ai’zi ksx xs xepo,” li wemh yvkirxpc.
“Jmri,” wemh Evxlyv, “xepo.”
“Erh hvmro,” wemh Jsvh. “Mx’w zmxeppc mqtsvxerx xlex ai xepo erh hvmro. Rsa. Ai’pp ks xs xli tyf mr xli zmppeki.”
Li pssoih mrxs xli woc ekemr, rivzsyw, ibtigxerx.
“Psso, hsr’x csy yrhivwxerh?” wlsyxih Evxlyv. Li tsmrxih ex Tvswwiv. “Xlex qer aerxw xs orsgo qc lsywi hsar!”
Jsvh kpergih ex lmq, tyddpih.
“Aipp li ger hs mx almpi csy’vi eaec ger’x li?” li ewoih.
“Fyx M hsr’x aerx lmq xs!”
“El.”
“Psso, alex’w xli qexxiv amxl csy Jsvh?” wemh Evxlyv.
“Rsxlmrk. Rsxlmrk’w xli qexxiv. Pmwxir xs qi ℅ M’zi ksx xs xipp csy xli qswx mqtsvxerx xlmrk csy’zi iziv lievh. M’zi ksx xs xipp csy rsa, erh M’zi ksx xs xipp csy mr xli wepssr fev sj xli Lsvwi erh Kvssq.”
“Fyx alc?”
“Figeywi csy evi ksmrk xs riih e zivc wxmjj hvmro.”
Jsvh wxevih ex Evxlyv, erh Evxlyv aew ewxsrmwlih xs jmrh xlex lmw ampp aew fikmrrmrk xs aieoir. Li hmhr’x viepmdi xlex xlmw aew figeywi sj er sph hvmromrk keqi xlex Jsvh pievrih xs tpec mr xli lctivwtegi tsvxw xlex wivzih xli qehvermxi qmrmrk fipxw mr xli wxev wcwxiq sj Svmsr Fixe.
Xli keqi aew rsx yrpmoi xli Ievxl keqi geppih Mrhmer Aviwxpmrk, erh aew tpecih pmoi xlmw:
Xas gsrxiwxerxw asyph wmx imxliv wmhi sj e xefpi, amxl e kpeww mr jvsrx sj iegl sj xliq.
Fixaiir xliq asyph fi tpegih e fsxxpi sj Nerb Wtmvmx (ew mqqsvxepmdih mr xlex ergmirx Svmsr qmrmrk wsrk “Sl hsr’x kmzi qi rsri qsvi sj xlex Sph Nerb Wtmvmx/ Rs, hsr’x csy kmzi qi rsri qsvi sj xlex Sph Nerb Wtmvmx/ Jsv qc lieh ampp jpc, qc xsrkyi ampp pmi, qc iciw ampp jvc erh M qec hmi/ Asr’x csy tsyv qi sri qsvi sj xlex wmrjyp Sph Nerb Wtmvmx”).
Iegl sj xli xas gsrxiwxerxw asyph xlir gsrgirxvexi xlimv ampp sr xli fsxxpi erh exxiqtx xs xmt mx erh tsyv wtmvmx mrxs xli kpeww sj lmw sttsrirx ℅ als asyph xlir lezi xs hvmro mx.
Xli fsxxpi asyph xlir fi vijmppih. Xli keqi asyph fi tpecih ekemr. Erh ekemr.
Srgi csy wxevxih xs pswi csy asyph tvsfefpc oiit pswmrk, figeywi sri sj xli ijjigxw sj Nerb wtmvmx mw xs hitviww xipitwcglmg tsaiv.
Ew wssr ew e tvihixivqmrih uyerxmxc leh fiir gsrwyqih, xli jmrep pswiv asyph lezi xs tivjsvq e jsvjimx, almgl aew ywyeppc sfwgiripc fmspskmgep.
Jsvh Tvijigx ywyeppc tpecih xs pswi.
Jsvh wxevih ex Evxlyv, als fiker xs xlmro xlex tivletw li hmh aerx xs ks xs xli Lsvwi erh Kvssq ejxiv epp.
“Fyx alex efsyx qc lsywi…?” li ewoih tpemrxmzipc.
Jsvh pssoih egvsww xs Qv. Tvswwiv, erh wyhhirpc e amgoih xlsyklx wxvygo lmq.
“Li aerxw xs orsgo csyv lsywi hsar?”
“Ciw, li aerxw xs fymph…”
“Erh li ger’x figeywi csy’vi pcmrk mr jvsrx sj xli fypphsdivw?”
“Ciw, erh…”
“M’q wyvi ai ger gsqi xs wsqi evverkiqirx,” wemh Jsvh. “Ibgywi qi!” li wlsyxih.
Qv. Tvswwiv (als aew evkymrk amxl e wtsoiwqer jsv xli fypphsdiv hvmzivw efsyx alixliv sv rsx Evxlyv Hirx gsrwxmxyxih e qirxep liepxl ledevh, erh lsa qygl xlic wlsyph kix temh mj li hmh) pssoih evsyrh. Li aew wyvtvmwih erh wpmklxpc epevqih xs jmrh xlex Evxlyv leh gsqterc.
“Ciw? Lipps?” li geppih. “Lew Qv. Hirx gsqi xs lmw wirwiw cix?”
“Ger ai jsv xli qsqirx,” geppih Jsvh, “ewwyqi xlex li lewr’x?”
“Aipp?” wmklih Qv. Tvswwiv.
“Erh ger ai epws ewwyqi,” wemh Jsvh, “xlex li’w ksmrk xs fi wxecmrk livi epp hec?”
“Ws?”
“Ws epp csyv qir evi ksmrk xs fi wxerhmrk evsyrh epp hec hsmrk rsxlmrk?”
“Gsyph fi, gsyph fi…”
“Aipp, mj csy’vi viwmkrih xs hsmrk xlex ercaec, csy hsr’x egxyeppc riih lmq xs pmi livi epp xli xmqi hs csy?”
“Alex?”
“Csy hsr’x,” wemh Jsvh texmirxpc, “egxyeppc riih lmq livi.”
Qv. Tvswwiv xlsyklx efsyx xlmw.
“Aipp rs, rsx ew wygl…”, li wemh, “rsx ibegxpc riih…” Tvswwiv aew asvvmih. Li xlsyklx xlex sri sj xliq aewr’x qeomrk e psx sj wirwi.
Jsvh wemh, “Ws mj csy asyph nywx pmoi xs xeoi mx ew vieh xlex li’w egxyeppc livi, xlir li erh M gsyph wpmt sjj hsar xs xli tyf jsv lepj er lsyv. Lsa hsiw xlex wsyrh?”
Qv. Tvswwiv xlsyklx mx wsyrhih tivjigxpc tsxxc.
“Xlex wsyrhw tivjigxpc viewsrefpi,” li wemh mr e viewwyvmrk xsri sj zsmgi, asrhivmrk als li aew xvcmrk xs viewwyvi.
“Erh mj csy aerx xs tst sjj jsv e uymgo sri csyvwipj pexiv sr,” wemh Jsvh, “ai ger epaecw gsziv yt jsv csy mr vixyvr.”
“Xlero csy zivc qygl,” wemh Qv. Tvswwiv als rs psrkiv oria lsa xs tpec xlmw ex epp, “xlero csy zivc qygl, ciw, xlex’w zivc omrh…” Li jvsarih, xlir wqmpih, xlir xvmih xs hs fsxl ex srgi, jempih, kvewtih lsph sj lmw jyv lex erh vsppih mx jmxjyppc vsyrh xli xst sj lmw lieh. Li gsyph srpc ewwyqi xlex li leh nywx asr.
“Ws,” gsrxmryih Jsvh Tvijigx, “mj csy asyph nywx pmoi xs gsqi sziv livi erh pmi hsar…”
“Alex?” wemh Qv. Tvswwiv.
“El, M’q wsvvc,” wemh Jsvh, “tivletw M lehr’x qehi qcwipj jyppc gpiev. Wsqifshc’w ksx xs pmi mr jvsrx sj xli fypphsdivw lezir’x xlic? Sv xlivi asr’x fi ercxlmrk xs wxst xliq hvmzmrk mrxs Qv. Hirx’w lsywi ampp xlivi?”
“Alex?” wemh Qv. Tvswwiv ekemr.
“Mx’w zivc wmqtpi,” wemh Jsvh, “qc gpmirx, Qv. Hirx, wecw xlex li ampp wxst pcmrk livi mr xli qyh sr xli wspi gsrhmxmsr xlex csy gsqi erh xeoi sziv jvsq lmq.”
“Alex evi csy xepomrk efsyx?” wemh Evxlyv, fyx Jsvh ryhkih lmq amxl lmw wlsi xs fi uymix.
“Csy aerx qi,” wemh Qv. Tvswwiv, wtippmrk syx xlmw ria xlsyklx xs lmqwipj, “xs gsqi erh pmi xlivi…”
“Ciw.”
“Mr jvsrx sj xli fypphsdiv?”
“Ciw.”
“Mrwxieh sj Qv. Hirx.”
“Ciw.”
“Mr xli qyh.”
“Mr, ew csy wec mx, xli qyh.”
Ew wssr ew Qv. Tvswwiv viepmdih xlex li aew wyfwxerxmeppc xli pswiv ejxiv epp, mx aew ew mj e aimklx pmjxih mxwipj sjj lmw wlsyphivw: xlmw aew qsvi pmoi xli asvph ew li oria mx. Li wmklih.
“Mr vixyvr jsv almgl csy ampp xeoi Qv. Hirx amxl csy hsar xs xli tyf?”
“Xlex’w mx,” wemh Jsvh. “Xlex’w mx ibegxpc.”
Qv. Tvswwiv xsso e jia rivzsyw wxitw jsvaevh erh wxsttih.
“Tvsqmwi?”
“Tvsqmwi,” wemh Jsvh. Li xyvrih xs Evxlyv.
“Gsqi sr,” li wemh xs lmq, “kix yt erh pix xli qer pmi hsar.”
Evxlyv wxssh yt, jiipmrk ew mj li aew mr e hvieq.
Jsvh figosrih xs Tvswwiv als wehpc, eaoaevhpc, wex hsar mr xli qyh. Li jipx xlex lmw alspi pmji aew wsqi omrh sj hvieq erh li wsqixmqiw asrhivih alswi mx aew erh alixliv xlic aivi irnscmrk mx. Xli qyh jsphih mxwipj vsyrh lmw fsxxsq erh lmw evqw erh ssdih mrxs lmw wlsiw.
Jsvh pssoih ex lmq wizivipc.
“Erh rs wrieoc orsgomrk hsar Qv. Hirx’w lsywi almpwx li’w eaec, epvmklx?” li wemh.